初始化

WebApplication1/Models/ErrorViewModel.cs

@@ -0,0 +1,9 @@
+namespace WebApplication1.Models
+{
+    public class ErrorViewModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+    }
+}

WebApplication1/Models/tui.cs

@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.SignalR;
+
+namespace WebApplication1.Models
+{
+    public class tui : Hub
+    {
+        public async Task SendMessage(string user, string message)
+        {
+            for (int i = 0; i < 100; i++)
+            {
+                await Task.Delay(1500);
+                await Clients.All.SendAsync("ReceiveMessage", message+$"{i}");
+            }
+        }
+    }
+}